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Definition: Gregorian year
, a. [NL. Gregorianus, fr. Gregorius
Gregory, Gr. ?: cf. F. gr['e]gorien.]
Pertaining to, or originated by, some person named Gregory,
especially one of the popes of that name.
, the calendar as reformed by Pope
Gregory XIII. in 1582, including the method of adjusting
the leap years so as to harmonize the civil year with the
solar, and also the regulation of the time of Easter and
the movable feasts by means of epochs. See Gregorian year
(Mus.), plain song, or canto fermo, a kind
of unisonous music, according to the eight celebrated
church modes, as arranged and prescribed by Pope Gregory
I. (called “the Great”
) in the 6th century.
, the musical scales ordained by Pope
Gregory the Great, and named after the ancient Greek
scales, as Dorian, Lydian, etc.
(Opt.), a form of reflecting telescope,
named from Prof. James Gregory, of Edinburgh, who
perfected it in 1663. A small concave mirror in the axis
of this telescope, having its focus coincident with that
of the large reflector, transmits the light received from
the latter back through a hole in its center to the
eyepiece placed behind it.
, the year as now reckoned according to the
Gregorian calendar. Thus, every year, of the current
reckoning, which is divisible by 4, except those divisible
by 100 and not by 400, has 366 days; all other years have
365 days. See Bissextile
, and Note under Style
, n., 7.
, n. [OE. yer, yeer, [yogh]er, AS. ge['a]r; akin to
OFries. i?r, g?r, D. jaar, OHG. j[=a]r, G. jahr, Icel. [=a]r,
Dan. aar, Sw. [*a]r, Goth. j?r, Gr. ? a season of the year,
springtime, a part of the day, an hour, ? a year, Zend
y[=a]re year. [root]4, 279. Cf. Hour
1. The time of the apparent revolution of the sun trough the
ecliptic; the period occupied by the earth in making its
revolution around the sun, called the astronomical year;
also, a period more or less nearly agreeing with this,
adopted by various nations as a measure of time, and
called the civil year; as, the common lunar year of 354
days, still in use among the Mohammedans; the year of 360
days, etc. In common usage, the year consists of 365 days,
and every fourth year (called bissextile, or leap year) of
366 days, a day being added to February on that year, on
account of the excess above 365 days (see Bissextile
Of twenty year of age he was, I guess. --Chaucer.
Note: The civil, or legal, year, in England, formerly
commenced on the 25th of March. This practice continued
throughout the British dominions till the year 1752.
2. The time in which any planet completes a revolution about
the sun; as, the year of Jupiter or of Saturn.
3. pl. Age, or old age; as, a man in years. --Shak.
, the time of the earth's revolution from
perihelion to perihelion again, which is 365 days, 6
hours, 13 minutes, and 48 seconds.
A year's mind
(Eccl.), a commemoration of a deceased
person, as by a Mass, a year after his death. Cf. A month's mind
, under Month
. See Bissextile
. See under Canicular
, the year adopted by any nation for the
computation of time.
Common lunar year
, the period of 12 lunar months, or 354
, each year of 365 days, as distinguished from
, or Intercalary lunar year
, the period of
13 lunar months, or 384 days.
(Com.), the year by which accounts are
reckoned, or the year between one annual time of
settlement, or balancing of accounts, and another.
. See Platonic year
, under Platonic
, Julian year
. See under Gregorian
. See Leap year
, in the Vocabulary.
Lunar astronomical year
, the period of 12 lunar synodical
months, or 354 days, 8 hours, 48 minutes, 36 seconds.
. See under Lunisolar
. See Anomalistic year
, Sabbatical year
. See under Platonic
, the time in which the sun, departing from
any fixed star, returns to the same. This is 365 days, 6
hours, 9 minutes, and 9.3 seconds.
. See under Tropical
Year and a day
(O. Eng. Law), a time to be allowed for an
act or an event, in order that an entire year might be
secured beyond all question. --Abbott.
Year of grace
, any year of the Christian era; Anno Domini;
A. D. or a. d.